That, actually explains a lot:
-Why the Dad is the stupid one,
-Why the Mom is the strongest of the two,
-Why Helene want Shuravan to be the strongest,
-Why Deathparta doesn't really care about world domination (instead focused on creating monsters for the heroes to defeat).
@Percivalen, i mean, Nemesis already know the truth about Shuravan and Helene dating, she even actually support them. Check back chapter 2.